I am/was a contractor and I still get a bunch of requests on LinkedIn from recruiters, so it's not that, it must be your resume or something similar. For me I have all the latest buzzwords, as I work as a full stack dev, so React, Node, TypeScript, even AI now, etc. That seems to get me through recruiter searches. I also put down my LLC I've been using for the last several years and haven't seen any sort of discrimination on that.
Maybe emphasizing AI more would help like you mentioned, or maybe I need to be looking in different markets.